Web Lab 2 v2: Add cache bust suffix to starter image requests #70195
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bencodeorg
approved these changes
Jan 6, 2026
fisher-alice
approved these changes
Jan 6, 2026
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fisher-alice
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Nice! Just left a question.
| if (url.startsWith('/level_starter_assets/')) { | ||
| // We fetch level starter assets from the code.org origin for this environment. | ||
| fetchUrl = codeDotOrgOrigin + url; | ||
| // Adding a temporary cache bust query parameter to avoid some caching issues with level starter assets. |
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So we'll remove this in a few days (whether it hopefully helps or not)?
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This is a speculative fix to a mysterious error we've been seeing on the v2 preview. Sometimes the starter images fail to load with a non-specific error. I can get the same image to load in one browser and not load on another browser. One level that had failed images last night for me loaded fine this morning. My best guess is there is some caching issue going on since there was a fix to the starter images deployed yesterday afternoon. As a quick, hopeful, fix, I added a cache bust suffix to the level starter assets url to try to get around the issue.
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I haven't been able to repro this locally, but this change doesn't break anything locally. The v2 preview is still behind a flag, so this is very low risk.
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